ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,742, issued on Sept. 23, was assigned to JZ Technologies LLC (Cincinnati).

"Method and apparatus for applying an architectural layout to a surface" was invented by Jeffrey Samuelson (Cincinnati).

According to the abstract* released by the U.S. Patent & Trademark Office: "Apparatuses and methods for accurately applying an architectural layout to a surface. A calibration system includes a calibration rig having a plurality of vertical calibration legs assembled with a plurality of horizontal calibration legs and a laser that emits one or more beams of light onto a work surface to position the architectural layout relative to the calibration rig on the work surface. Calibration mar...